Hi all, I am desperately looking for privacy screening for the back of the garden along a fence line. Ideally we would prefer to have something that can grow and stay planted in a pot to sit on top of stones. We would like something that is leafy all year round and can grow to 6/7ft. The width would be around 6 metres and we will have trellis on top of the fence. We are complete novices so something that doesn't requite too much maintenance. Thanks in advance!